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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1115 (Engine Cooling System) >> Repair Instructions >> Water Pump Replacement (LY7) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system until the coolant is below the water pump. Refer to Draining and Filling Cooling System .
  2. Remove the accessory drive belt from the water pump. Refer to Drive Belt Replacement in Engine Mechanical - 3.6L (LY7).
    3. Fig 1: Securing Water Pump Pulley With EN 46104
    GM1342893Courtesy of GENERAL MOTORS CORP.
  3. Use the EN 46104  in order to retain the water pump pulley.
    4. Fig 2: View Of Water Pump Pulley
    GM1394038Courtesy of GENERAL MOTORS CORP.
  4. Remove the water pump pulley bolts and the water pump pulley.
    5. Fig 3: Identifying Water Pump Components
    GM1395996Courtesy of GENERAL MOTORS CORP.
  5. Remove the water pump bolts.
  6. Remove the water pump.
  7. Remove and discard the water pump gasket.
  8. Clean the water pump sealing surfaces.
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